CMDR Joystick 25
RC(ELRS)/USB Joystick with 2 hall effect gimbals, 2 hat switches and 25 buttons for use both with PC simulators and ELRS Rx equipped quads.
Layout
USB Joystick Layer 0
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| FnL | B1 | | B21 | | B5 | FnR |
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| | B2 | B3 | MoL | | MoR | B7 | B6 | |
| |
| | B4 | | B8 | |
| | B17 | | B18 | |
| Z/RZ X/Y |
| | H1U | | H2U | |
| | H1L | H1B | H1R || H2L | H2B | H2R | |
| | H1D | | H2D | |
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USB Joystick Layer 1 (FnL)
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| FnL | B9 | | B21 | | B5 | FnR |
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| | B10 | B11 | MoL | | MoR | B7 | B6 | |
| |
| | B12 | | B8 | |
| | B19 | | B18 | |
| Z/RZ X/Y |
| | H3U | | H2U | |
| | H3L | H3B | H3R || H2L | H2B | H2R | |
| | H3D | | H2D | |
--------------------------------------------------------------
USB Joystick Layer 2 (FnR)
--------------------------------------------------------------
| FnL | B1 | | B21 | | B13 | FnR |
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| | B2 | B3 | MoL | | MoR | B15 | B14 | |
| |
| | B4 | | B16 | |
| | B17 | | B20 | |
| Z/RZ X(RX)/Y(RY) |
| | H1U | | H4U | |
| | H1L | H1B | H1R || H4L | H4B | H4R | |
| | H1D | | H4D | |
--------------------------------------------------------------
USB Joystick Layer 3 (FnL + FnR)
--------------------------------------------------------------
| FnL | B9 | | B21 | | B13 | FnR |
--------------------------------------------------------------
| | B10 | B11 | MoL | | MoR | B15 | B14 | |
| |
| | B12 | | B16 | |
| | B19 | | B20 | |
| Z/RZ X(RX)/Y(RY) |
| | H3U | | H4U | |
| | H3L | H3B | H3R || H4L | H4B | H4R | |
| | H3D | | H4D | |
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ELRS Layer
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| CH7 OFF | CH7 ON | | -- | | CH8 ON | CH8 OFF|
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| | CH9 ON | CH9 OFF | CH5 | | CH6 | CH10 OFF | CH10 ON |
| |
| | CH11 ON | | CH12 ON | |
| | CH11 OFF | | CH12 OFF | |
| X(CH1)/Y(CH2) X(CH3)/Y(CH4) |
| | LTU | | RTU | |
| | LTL | LTC | LTR || RTL | RTC | RTR | |
| | LTD | | RTD | |
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Config Layer
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| BOOT | CAL | | CONFIG | | USB | ELRS |
--------------------------------------------------------------
| | -- | -- | -- | | -- | -- | -- | |
| |
| | --- | | --- | |
| | --- | | --- | |
| X(CH1)/Y(CH2) X(CH3)/Y(CH4) |
| | --- | | --- | |
| | --- | --- | --- || --- | --- | --- | |
| | --- | | --- | |
--------------------------------------------------------------
Features
- Ergonomic design (low profile)
- Hall effect gimbals
- Supports both USB HID joystick and ELRS Tx
- Total 6x axis, 4x hat switches and 25x buttons (using Fn mode) implemented in USB HID mode
- 12 Channels implemented in ELRS mode (4x axis, 8x buttons)
Hardware
-
2x FrSky M7 or M10 gimbals M7 datasheet
-
6x Kailh choc low profile switches Brown
-
6x Cherry MX switches Brown
-
2x Miniature Toggle Switch (M6 shaft, 7-8mm wide body. Ex Apem 5636) Apem 5000 series
-
2x Alpine RKJXM1015004 hat switches pdf
-
1x Bottom case (3D printed)
-
1x Top plate (3D printed)
-
2x Hat swith top (3D printed) stl
-
1x Custom PCB (CMDR Joystick 25 rev A)
-
1x ELRS TX (using a EP1 TCXO Dual receiver reprogrammed as a tramsmitter)
- Link to EP1
- Reprogramming instructions (using ExpressLRS Configurator):
- Select latest release
- Device category = Generic target used as base 2.4Ghz
- Device = Generic ESP32 2.4GHz Gemini TX
- Flash to device
- Use following custom settings in 10.0.0.1/hardware.html:
{"customised":"true","serial_rx":3,"serial_tx":1,"radio_busy":36,"radio_dio1":37,"radio_miso":33,"radio_mosi":32,"radio_nss":27,"radio_rst":26,"radio_sck":25,"radio_busy_2":39,"radio_dio1_2":34,"radio_nss_2":13,"power_rxen":10,"power_txen":14,"power_rxen_2":9,"power_txen_2":15,"power_min":0,"power_high":2,"power_max":2,"power_default":0,"power_control":0,"power_values":[-10,-6,-3],"button":0,"led_rgb":22,"led_rgb_isgrb":true,"screen_type":0}
Software Build environment
Rust
- Cargo (rust embedded)
- Flashing via Cargo
- Press and hold boot button on rp2040zero board while perform a reset
- Press and hold CONF and press BOOT button.
References
Calibration
- Center both gimbals.
- Press and hold CONF button and press CAL botton. Status led will start blinking green.
- Move both gimbals to all corners.
- Press right hat switch to save calibration data to eeprom.